RNS Number:1284D
Newport Networks Group PLC
31 August 2007


                TR-l: NOTIFICATION OF MAJOR INTERESTS IN SHARES


1.   Identity of the issuer or the underlying issuer of existing shares to which 
     voting rights are attached (ii):

     Newport Networks Group PLC ordinary shares of 0.1 pence each

2.   Reason for the notification: (please state Yes/No):

     An acquisition or disposal of voting rights


3.   Full name of the person(s) subject to the notification obligation:

     Gartmore Investment Limited


4.   Full name of shareholder(s) (if different from 3.):

     N/A


5.   Date of the transaction and date on which the threshold is crossed or reached:

     24/08/2007

6.   Date on which issuer notified:

     28/08/2007

7.   Threshold(s) that is/are crossed or reached:

     Now below 5%

8.   Notified details:


A: Voting rights attached to shares

Class /type  Situation Previous to Resulting situation after the Triggering
of shares    the                   Transaction vii
             TriggeringTransaction
If possible  Number of Number of   Number of Shares Number of voting   % of voting
using the    Shares    voting                       Rights iv          Rights
ISIN CODE              Rightsviii
                                   Direct  Indirect Direct x  Indirect Direct Indirect
                                                                    xi

GB00B00ST620 8,912,697 8,912,697        - 8,912,697        - 8,912,697      -   2.431%


B: Financial Instruments


Resulting situation after the triggering transactionxii

Type of      Expiration  Exercise   Number of voting         % of voting
financial    Datexiii    Conversion Rights that may be       rights
instrument               Period     Acquired if the
                         / Date xiv instrument is exercised/
                                    converted.

n/a



Total (A+B)

Number of voting       % of voting rights
rights
8,912,697              2.431%


9.  Chain of controlled undertakings through which the voting rights and/or the 
financial instruments are effectively held, if applicable xv
+---------------------------------+------------------+------------------+
|Registered Holder                |Shares Held       |Percentage of     |
|                                 |                  |Issued share      |
|                                 |                  |Capital           |
+---------------------------------+------------------+------------------+
|HSBC Global Custody Nominee UK   |         3,800,000|            1.037%|
|Limited                          |                  |                  |
+---------------------------------+------------------+------------------+
|BNY GIL CLT A/C Noms Limited A/C |         1,421,298|            0.388%|
|LST                              |                  |                  |
+---------------------------------+------------------+------------------+
|BNY GIL CLT A/C Noms Limited A/C |           571,817|            0.156%|
|NWSC                             |                  |                  |
+---------------------------------+------------------+------------------+
|Vidacos Nominees Limited A/C 2303|         2,516,665|            0.687%|
+---------------------------------+------------------+------------------+
|Nortrust Nominees Limited        |           602,917|            0.164%|
+---------------------------------+------------------+------------------+



Proxy Voting:


10. Name of the proxy holder:


11. Number of voting rights proxy holder will cease to hold:


12. Date on which proxy holder will cease to hold voting rights:


13. Additional information

+----------------------------------------------------------------------+
|All shares are held indirectly                                        |
|                                                                      |
|All figures are based on the Companies issued share capital of        |
|366,582,833 as provided by Exshare                                    |
|                                                                      |
|Email contact: RDU@Gartmore.com                                       |
+----------------------------------------------------------------------+


14. Contact name:

    Alison Averono

15. Contact telephone number:

    +44 (0)20 7782 2324

END


31 August 2007






                      This information is provided by RNS
            The company news service from the London Stock Exchange

END
HOLUAONRBORWOAR

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